Update PackageIdentity to be case-insensitive (#3749)
Update PackageIdentity to be case-insensitive (#3749)

* Refine PackageIdentity Equatable conformance to be case-insensitive

* Use Foundation string methods for case-insensitive comparisons
abertelrud/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,abertelrud/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager